Annotation of parser3/src/main/pa_globals.C, revision 1.223
1.15 paf 1: /** @file
1.16 paf 2: Parser: globals.
3:
1.219 moko 4: Copyright (c) 2001-2026 Art. Lebedev Studio (https://www.artlebedev.com)
1.213 moko 5: Authors: Konstantin Morshnev <moko@design.ru>, Alexandr Petrosian <paf@design.ru>
1.133 paf 6: */
1.16 paf 7:
1.102 paf 8: #include "pa_config_includes.h"
9:
10: #ifdef XML
1.157 paf 11: #include "libxml/xmlversion.h"
1.102 paf 12: #include "libxslt/extensions.h"
13: #include "libxslt/xsltutils.h"
1.116 paf 14: extern "C" {
1.102 paf 15: #include "libexslt/exslt.h"
1.193 moko 16: }
1.102 paf 17: #endif
18:
1.1 paf 19: #include "pa_globals.h"
1.203 moko 20: #include "pa_socks.h"
1.83 parser 21: #include "pa_sapi.h"
1.162 paf 22: #include "pa_xml_io.h"
1.163 paf 23: #include "pa_common.h"
1.196 moko 24: #include "pa_symbols.h"
1.70 parser 25:
1.164 paf 26: #include "pa_cache_managers.h"
27:
1.188 moko 28: #include "ltdl.h"
1.214 moko 29: #include "pa_vregex.h"
1.182 misha 30:
1.223 ! moko 31: volatile const char * IDENT_PA_GLOBALS_C="$Id: pa_globals.C,v 1.222 2026/10/18 21:05:35 moko Exp $" IDENT_PA_GLOBALS_H IDENT_PA_SAPI_H;
1.187 moko 32:
1.157 paf 33: // defines
1.155 paf 34:
1.157 paf 35: //#define PA_DEBUG_XML_GC_MEMORY
1.95 paf 36:
1.157 paf 37: // globals
1.32 paf 38:
1.204 moko 39: short hex_value[0x100] = {
40: 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
41: 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
42: 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
43: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 0, 0, 0, 0, 0,
44: 0, 10, 11, 12, 13, 14, 15, 0, 0, 0, 0, 0, 0, 0, 0, 0,
45: 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
46: 0, 10, 11, 12, 13, 14, 15, 0, 0, 0, 0, 0, 0, 0, 0, 0,
47: };
1.1 paf 48:
1.210 moko 49: THREAD_LOCAL Request* thread_request=NULL; // every TLS should be referenced elsewhere, or GC will collect it
1.162 paf 50:
51: Request& pa_thread_request() {
1.208 moko 52: if(!thread_request)
53: throw Exception(0, 0, "request is not initialized");
1.185 moko 54: return *thread_request;
1.162 paf 55: }
1.176 paf 56:
1.162 paf 57:
1.99 paf 58: #ifdef XML
1.101 paf 59:
1.157 paf 60: class XML_Generic_error_info {
1.173 paf 61: public:/*internal, actually*/
1.166 paf 62: char buf[MAX_STRING*5];
1.157 paf 63: size_t used;
64: public:
65: XML_Generic_error_info() {
66: buf[used=0]=0;
67: }
1.173 paf 68: const char* get() {
69: return used? buf: 0;
1.157 paf 70: }
1.162 paf 71: };
1.101 paf 72:
1.186 moko 73: THREAD_LOCAL XML_Generic_error_info* xml_generic_error_info = NULL;
1.101 paf 74:
1.162 paf 75: static void xmlParserGenericErrorFunc(void * /*ctx*/, const char* msg, ...) {
1.172 paf 76: XML_Generic_error_info* p;
1.186 moko 77:
78: if(!(p=xml_generic_error_info)) // occupy empty one
79: p=xml_generic_error_info=new(PointerFreeGC) XML_Generic_error_info;
1.101 paf 80:
1.172 paf 81: va_list args;
82: va_start(args, msg);
1.222 moko 83: p->used+=pa_vsnprintf(p->buf+p->used, sizeof(p->buf)-p->used, msg, args);
1.172 paf 84: va_end(args);
1.101 paf 85: }
86:
1.102 paf 87: bool xmlHaveGenericErrors() {
1.186 moko 88: return xml_generic_error_info!=0;
1.102 paf 89: }
90:
1.157 paf 91: const char* xmlGenericErrors() {
1.186 moko 92: if(XML_Generic_error_info *p=xml_generic_error_info) {
93: xml_generic_error_info=0;
1.173 paf 94: return p->get();
95: }
1.110 paf 96:
1.162 paf 97: return 0; // no errors for our thread_id registered
1.150 paf 98: }
99:
1.195 moko 100: #endif // XML
1.99 paf 101:
1.157 paf 102: #ifdef XML
103:
104: static char *pa_GC_strdup(const char *s) {
105: if(!s)
106: return 0;
107:
108: size_t size=strlen(s)+1;
1.199 moko 109: char *result=(char *)GC_MALLOC_ATOMIC(size);
1.195 moko 110:
1.159 paf 111: if(!result)
1.184 misha 112: pa_fail_alloc("duplicate XML string",size);
1.159 paf 113:
1.157 paf 114: memcpy(result, s, size);
1.170 paf 115: #ifdef PA_DEBUG_XML_GC_MEMORY
116: fprintf(stderr, "pa_GC_strdup(%p=%s, length=%d)=0x%p\n", s, s, size, result);
117: #endif
1.157 paf 118: return result;
119: }
120:
121: #ifdef PA_DEBUG_XML_GC_MEMORY
1.191 moko 122:
1.157 paf 123: static void* pa_gc_malloc_log(size_t size){
1.199 moko 124: void *p=GC_MALLOC(size);
1.157 paf 125: fprintf(stderr, "pa_gc_malloc_log(%d)=0x%p\n", size, p);
126: return p;
127:
128: }
1.191 moko 129:
1.157 paf 130: static void* pa_gc_malloc_atomic_log(size_t size){
1.199 moko 131: void *p=GC_MALLOC_ATOMIC(size);
1.157 paf 132: fprintf(stderr, "pa_gc_malloc_atomic_log(%d)=0x%p\n", size, p);
133: return p;
134: }
1.191 moko 135:
1.157 paf 136: static void* pa_gc_realloc_log(void *ptr, size_t size){
1.199 moko 137: void *p=GC_REALLOC(ptr, size);
1.157 paf 138: fprintf(stderr, "pa_gc_realloc_log(0x%p, %d)=0x%p\n", ptr, size, p);
139: return p;
140: }
1.191 moko 141:
1.157 paf 142: static void pa_gc_free_log(void *p){
143: fprintf(stderr, "pa_gc_free_log(0x%p)\n", p);
1.199 moko 144: GC_FREE(p);
1.157 paf 145: }
1.191 moko 146:
1.159 paf 147: #else
148:
149: inline void *check(void *result, const char *where, size_t size) {
150: if(!result)
1.184 misha 151: pa_fail_alloc(where, size);
1.159 paf 152: return result;
153: }
1.191 moko 154:
1.159 paf 155: static void* pa_gc_malloc_nonull(size_t size) {
1.199 moko 156: return check(GC_MALLOC(size), "allocate XML compsite memory", size);
1.159 paf 157: }
1.191 moko 158:
1.159 paf 159: static void* pa_gc_malloc_atomic_nonull(size_t size) {
1.199 moko 160: return check(GC_MALLOC_ATOMIC(size), "allocate XML atomic memory", size);
1.159 paf 161: }
1.191 moko 162:
1.159 paf 163: static void* pa_gc_realloc_nonull(void* ptr, size_t size) {
1.199 moko 164: return check(GC_REALLOC(ptr, size), "reallocate XML memory", size);
1.159 paf 165: }
166:
1.191 moko 167: static void pa_gc_free_maybeignore(void* ptr) {
1.199 moko 168: GC_FREE(ptr);
1.175 paf 169: }
170:
1.157 paf 171: #endif
1.195 moko 172:
173: #endif // XML
1.157 paf 174:
1.214 moko 175: #ifdef HAVE_PCRE2
176: pcre2_general_context* VRegex::fgen_ctxt;
177:
1.217 moko 178: static void* pa_pcre_malloc(size_t size, void *){
1.214 moko 179: return pa_malloc(size);
180: }
181:
1.217 moko 182: static void pa_pcre_free(void *ptr, void *){
1.214 moko 183: pa_free(ptr);
184: }
185: #endif
186:
187:
1.157 paf 188: void pa_CORD_oom_fn(void) {
1.184 misha 189: pa_fail_alloc("expand string", 0);
1.157 paf 190: }
191:
1.218 moko 192: #ifndef PA_DEBUG_DISABLE_GC
193: extern "C" void *pa_fail_alloc(const char*);
194: extern "C" void pa_GC_abort_func(const char *msg) {
195: pa_fail_alloc(msg);
196: }
197: #endif
198:
1.157 paf 199: /**
200: @todo gc: libltdl: substitute lt_dlmalloc & co
201: */
202: static void gc_substitute_memory_management_functions() {
203: // in libxml & libxslt
204: #ifdef XML
205: // asking to use GC memory
206: #ifdef PA_DEBUG_XML_GC_MEMORY
207: xmlGcMemSetup(
208: /*xmlFreeFunc */pa_gc_free_log,
209: /*xmlMallocFunc */pa_gc_malloc_log,
210: /*xmlMallocFunc */pa_gc_malloc_atomic_log,
211: /*xmlReallocFunc */pa_gc_realloc_log,
212: /*xmlStrdupFunc */pa_GC_strdup);
213: #else
214: xmlGcMemSetup(
1.175 paf 215: /*xmlFreeFunc */pa_gc_free_maybeignore,
1.159 paf 216: /*xmlMallocFunc */pa_gc_malloc_nonull,
217: /*xmlMallocFunc */pa_gc_malloc_atomic_nonull,
218: /*xmlReallocFunc */pa_gc_realloc_nonull,
1.157 paf 219: /*xmlStrdupFunc */pa_GC_strdup);
220: #endif
1.32 paf 221:
1.157 paf 222: #endif
1.141 paf 223:
1.157 paf 224: // pcre
1.214 moko 225: #ifdef HAVE_PCRE2
226: VRegex::fgen_ctxt=pcre2_general_context_create(pa_pcre_malloc, pa_pcre_free, NULL);
227: #else
1.199 moko 228: pcre_malloc=pa_malloc;
229: pcre_free=pa_free;
1.214 moko 230: #endif
1.135 paf 231:
1.157 paf 232: // cord
233: CORD_oom_fn=pa_CORD_oom_fn;
234: }
1.88 paf 235:
1.157 paf 236: /**
237: @test hint on one should call this for each thread xmlSubstituteEntitiesDefault(1);
238: */
239: void pa_globals_init() {
1.205 moko 240:
241: #ifndef PA_DEBUG_DISABLE_GC
1.206 moko 242: // Dont collect unless explicitly requested. This is quicker (~30% ),
243: // but less memory-efficient(~8%), so deciding for speed.
1.210 moko 244: GC_disable();
1.206 moko 245: // as we log allocation errors, we don't need default gc warnings (without timestamp and URI)
246: GC_set_warn_proc(GC_ignore_warn_proc);
1.218 moko 247: // to prevent "mmap(PROT_NONE) failed + Aborted" under Linux
248: GC_set_abort_func(pa_GC_abort_func);
1.205 moko 249: #endif
250:
1.203 moko 251: // init socks
252: pa_socks_init();
253:
254: // global variables
1.164 paf 255: cache_managers=new Cache_managers;
256:
1.157 paf 257: // in various libraries
258: gc_substitute_memory_management_functions();
1.101 paf 259:
1.196 moko 260: #ifdef SYMBOLS_CACHING
261: // symbols cache
262: Symbols::init();
263: #endif
264:
1.76 parser 265: #ifdef XML
1.96 paf 266: // initializing xml libs
267:
1.191 moko 268: // Register the EXSLT extensions and the test module
1.157 paf 269: exsltRegisterAll();
270: xsltRegisterTestModule();
271: xmlDefaultSAXHandlerInit();
1.191 moko 272:
273: // disable CDATA from being built in the document tree
1.157 paf 274: // never added yet xmlDefaultSAXHandler.cdataBlock = NULL;
275:
1.191 moko 276: // Initialization function for the XML parser. This is not reentrant.
277: // Call once before processing in case of use in multithreaded programs.
1.99 paf 278: xmlInitParser();
1.107 paf 279:
280: // 1. this is needed for proper parsing of stylesheets
281: // there were a situation where honest entity ruined innocent xpath compilation
282: // doc says "you sould turn it on on stylesheet load" without deepening into details
283: // 2. when dom tree with entites goes under transform text nodes
284: // got [erroreosly] cut on first entity occurance
1.109 paf 285: // --
1.107 paf 286: // that is why this is:
287: xmlSubstituteEntitiesDefault(1);
1.100 paf 288:
289: // Bit in the loadsubset context field to tell to do ID/REFs lookups
290: xmlLoadExtDtdDefaultValue |= XML_DETECT_IDS;
291: // Bit in the loadsubset context field to tell to do complete the elements attributes lists
292: // with the ones defaulted from the DTDs
1.157 paf 293: xmlLoadExtDtdDefaultValue |= XML_COMPLETE_ATTRS;
1.138 paf 294:
295: // validate each document after load/create (?)
1.191 moko 296: // xmlDoValidityCheckingDefaultValue = 1;
1.99 paf 297:
1.191 moko 298: // regretfully this not only replaces entities on parse, but also on generate xmlSubstituteEntitiesDefault(1);
1.105 paf 299: // never switched this on xmlIndentTreeOutput=1;
1.104 paf 300:
1.101 paf 301: xmlSetGenericErrorFunc(0, xmlParserGenericErrorFunc);
1.102 paf 302: xsltSetGenericErrorFunc(0, xmlParserGenericErrorFunc);
1.191 moko 303:
1.195 moko 304: // FILE *f=fopen("xslt.log", "wt");
1.105 paf 305: // xsltSetGenericDebugFunc(f/*stderr*/, 0);
1.110 paf 306:
1.162 paf 307: pa_xml_io_init();
1.157 paf 308: #endif
1.216 moko 309:
310: // init *_class variables
311: methoded_array();
1.174 paf 312: }
313:
1.188 moko 314: static bool is_dlinited=false;
315:
1.174 paf 316: void pa_globals_done() {
1.191 moko 317: delete cache_managers;
318: cache_managers=0;
319:
1.188 moko 320: if(is_dlinited)
321: lt_dlexit();
1.203 moko 322:
323: pa_socks_done();
1.188 moko 324: }
325:
326: void pa_dlinit() {
327: if(!is_dlinited){
328: if(lt_dlinit())
1.192 moko 329: throw Exception(0,0,"preparation for dynamic library loading failed, %s", lt_dlerror());
1.188 moko 330: is_dlinited=true;
331: }
1.157 paf 332: }
333:
334: #ifdef _MSC_VER
335:
1.200 moko 336: #define PREFIX "../../../../win32/"
1.191 moko 337:
338: #ifdef _DEBUG
1.200 moko 339: #define CONFIGURATION "Debug"
340: #else
341: #define CONFIGURATION "Release"
342: #endif
343:
344: #ifdef _WIN64
345: #define PLATFORM_64 "x64/"
346: #define PLATFORM_32 ""
1.191 moko 347: #else
1.200 moko 348: #define PLATFORM_64 ""
349: #define PLATFORM_32 "win32/"
1.191 moko 350: #endif
1.96 paf 351:
1.221 moko 352: #ifdef HAVE_PCRE2
353: #pragma comment(lib, PREFIX "pcre2/" PLATFORM_64 CONFIGURATION "/pcre2-8-static.lib")
354: #else
1.201 moko 355: #pragma comment(lib, PREFIX "pcre/" PLATFORM_64 CONFIGURATION "/pcre.lib")
1.221 moko 356: #endif
1.200 moko 357:
358: #ifndef PA_DEBUG_DISABLE_GC
359: #pragma comment(lib, PREFIX "gc/" PLATFORM_64 CONFIGURATION "/gc.lib")
1.220 moko 360: #endif // PA_DEBUG_DISABLE_GC
1.200 moko 361:
1.220 moko 362: #ifdef WITH_AMQP
363: #pragma comment(lib, PREFIX "rabbitmq/" PLATFORM_64 CONFIGURATION "/librabbitmq.4.lib")
364: #endif
1.76 parser 365:
1.221 moko 366: #ifdef WITH_REDIS
367: #pragma comment(lib, PREFIX "redis/" PLATFORM_64 CONFIGURATION "/hiredis.lib")
368: #ifdef WITH_REDIS_SSL
369: #pragma comment(lib, PREFIX "redis/" PLATFORM_64 CONFIGURATION "/hiredis_ssl.lib")
370: #endif
371: #endif
372:
1.191 moko 373:
374: #ifdef XML
375:
1.200 moko 376: #define GNOME_LIBS PREFIX "gnome"
1.181 paf 377:
1.200 moko 378: #define LIB_XML PREFIX "gnome/libxml2-x.x.x/" PLATFORM_64 PLATFORM_32 CONFIGURATION "/lib/"
379: #define LIB_XSLT PREFIX "gnome/libxslt-x.x.x/" PLATFORM_64 PLATFORM_32 CONFIGURATION "/lib/"
1.181 paf 380:
1.202 moko 381: #ifdef XML_STATIC
1.191 moko 382: #pragma comment(lib, LIB_XML "libxml2_a.lib")
1.202 moko 383: #pragma comment(lib, LIB_XSLT "libxslt_a.lib")
384: #pragma comment(lib, LIB_XSLT "libexslt_a.lib")
1.191 moko 385: #else
386: #pragma comment(lib, LIB_XML "libxml2.lib")
387: #pragma comment(lib, LIB_XSLT "libxslt.lib")
388: #pragma comment(lib, LIB_XSLT "libexslt.lib")
389: #endif
1.157 paf 390:
1.195 moko 391: #endif // XML
1.157 paf 392:
1.197 moko 393: // defines for VS2015 to link with gc/xml libs compiled in the previous VS versions
394: #if _MSC_VER >= 1900
395: #pragma comment(lib,"legacy_stdio_definitions.lib")
396: #endif
397:
1.195 moko 398: #endif // _MSC_VER
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